#include <stdio.h>
#include <string.h>

int main()
{
    char str[128] = "AA\0AA";
    char *str_1 = "BBBB";
    printf("str_1 = %s str_1 = %p\n", str_1, str_1);
    str_1 = "CCCC";
    printf("str = %s str_1 = %p\n", str, str);
    //strcpy(str,"BBBB");
     for (int i = 0; i < 4; i++)
    {
        str[i] = 'B';
    } 
    printf("str = %s str = %p\n", str, str);
    printf("str_1 = %s str_1 = %p\n", str_1, str_1);
    strcpy(str_1, "aaaa");
    printf("str_1 = %s str_1 = %p\n", str_1, str_1);
    return 0;
}